package com.wulijie.exterior;

/**
 * @Author cui
 * @Data
 */
public class Step1 {
    private static Step1 step1 = new Step1();

    private Step1() {
    }

    public static Step1 getInstance() {
        return step1;
    }

    public void m1() {
        System.out.println("step111");
    }

    public void m2() {
        System.out.println("step111");
    }

    public void m3() {
        System.out.println("step111");
    }
}
